Open the freezer door on the Roper refrigerator and find the ice tray. Open the tray and examine the inside.
Check the appliance's power cord, if the ice tray is empty and the freezer does not feel cold. The power cord may have simply become detached from the power outlet.
Check the thin, metal sensor bar in the upper left of the Whirlpool ice maker's tray, if the freezer is cold but the tray is devoid of ice. This sensor bar must be in its "low" or downward position for ice to be made. Push the bar down gently to orient it correctly and again begin ice production.
Clear out the Whirlpool ice maker's tray, if it is being filled up with large chunks of ice. These chunks may have formed over time and are likely blocking the dispenser and not allowing any ice to travel through the door into your cup. Remove any ice chunks and ensure the tray is not overflowing.